Nut-lock.



PATENTED SEPT. 1, 1908.

'H. OLDENDORPH.

NUT LOOK.

APPLICATION FILED 0GT.6, 1906.

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HENRY OLDENDORPH, OF ST. LOUIS, MISSOURI.

NUT-LOCK.

Specification of Letters Patent.

Patented Sept. 1, 1908.

Application filed October 6, 1906. Serial No. 337,750.

To all whom it may concern:

Be it known that I, HENRY OLDENDORPH, a citizen of the United States,residing at St. Louis, in the county of St. Louis City and State ofMissouri, have invented new and useful Improvements in Nut-Locks, ofwhich the following is a specification.

This invention relates to nut locks designed especially for use inconnection with the wheel holding nuts on vehicle axles,and has for itsobjects to provide a comparatively simple, inexpensive device of thischaracter whereby the axle nut may be readily and securely lockedagainst movement, and one which permits of the nut being convenientlyremoved when circumstances require.

WVith these and other objects in view, the invention comprises the novelfeatures of construction and combination of parts more fully hereinafterdescribed.

In the accompanying drawings: Figure 1 is a view taken centrally andlongitudinally through a portion of an axle spindle equipped with a nutlock embodying the invention. Fig. 2 is an end view of the device. aplan view of the locking member. Fig.4 is an elevation of the retainingmember. Fig. 5 is a perspective view of the retaining member.

Referring to the drawings, 1 designates an axle spindle having appliedthereto a metal sleeve or skein terminating at its outer end in areduced, threaded neck 3 adapted to receive the axle nut 4, these parts,which are conventionally shown herein, being of the usual or any apropriate construction and material and a apted in practice to performtheir ordinary functions.

Fixed to the outer end of the spindle 1 by means of a lag screw 5entered centrally and longitudinally into the latter is an annularretaining member or collar 6 which bears at its outer face against thescrew head 7 and is provided with a pair of oppositely disposetransverse openings 8 leading respectively to .reversely inclined camwalls 9 formed at the inner face of the member 6, there being removablyseated over the retaining member 6 a locking member or head 10 having acentral opening 11 into which projects a pair of oppositely disposedbearing lugs 12 formed for entrance through the openings 8 and to ridebeneath the inclined walls 9, while formed on the head 11 is a radiallyprojecting Fig. 3 is weighted arm 13 through the medium of which themember may be turned and held in'locking position.

The walls 9 cooperate with the outer face of the part 3 so as to formpockets which taper in a direction away from the recesses 8, and thelugs 12 of the locking member bear directly on the walls 9 at one sideand directly opposite side of the locking member. The locking member isprovided with a projection at a point diametrically opposite from thearm 13 and should the locking member stick so that it could not beloosened by hand, a wrench can be applied to the locking member byspanning the latter and bringing the jaws respectively into engagementwith the arm 13 and the said projection, thus permitting the wrench toturn the locking member without slipping.

In practice, the retaining member 6, which is of a diameter slightlyless than that of the neck 3, is attached to the spindle by means of thescrew 5 and after application of the nut 4 for holding the Wheel inplace the looking member 10 is applied over the retaining member 6 andpartially turned through the medium of the handle 13 for causing thelugs 12 to ride beneath the inclined faces 9 and press the member 10against the end of the spindle, thus to securely retain the nut 4 in pace thereon. When the member 10 is in looking position, the weighted arm13 will hang downward, thus serving through gravity to hold the lockingmember against accidental movement. It is to be observed that when thelocking member 10 is removed the nut 4 may, owing to the collar6being ofa diameter slightly less than that of the neck 3, be readily removed topermit removal of the wheel.

Having thus described my invention, what I claim is:

The combination of a member externally threaded at one end and providedwith a bore, a nut screwed on the said threaded end, a headed boltextending through the bore, a collar assembled on the bolt and held incontact with the end of the member by the head of the bolt and providedwith slots extending from one side to the other and having peripheralrecesses opening into the slots and presenting cam walls disposedopposite to the end surface of the member and cooperating on the outerface of the part 3 at the with the latter to form pockets tapering in acam walls, said locking piece being in contact direction away from theslots, and an annular locking piece roportioned to be freely assembledover t e collar and having lugs adapted to enter the slots and normallydisposed in the said pockets and hearing at one side directly on the endface of the member and at the opposite side directly on the said withthe nut at all points. 10 In testimony whereof, I afliX my signature inpresence of two witnesses.

HENRY OLDENDORPH. Witnesses:

HARRY HoENER, W. F. GILSTERE.

